One of the buzziest AI app-builders is trying to stop being a "wrapper." Base44, a "vibe coding" platform owned by website giant Wix, has begun rolling out its own AI model to power app creation, rather than relying entirely on outside models from companies like OpenAI and Anthropic, TechCrunch reported. The reason, in a word: defensibility.
What Base44 does
"Vibe coding" means building software by describing it in plain English — you type what you want, and the AI generates a working app. Base44 is one of a crop of such tools (alongside the likes of Cursor, Replit and Lovable). It rose fast: founded in late 2024, it was acquired by Wix for about $80 million in mid-2025 — when it reportedly had a tiny team, hundreds of thousands of users, and was already profitable, per TechCrunch. Now it says it has trained a proprietary model on its own users' app-building interactions.
Why build your own model
Founder Maor Shlomo framed it as a play for cost, speed and control — saying the company aims to serve customers "faster and cheaper" than leaning on frontier models like Anthropic's Opus, per TechCrunch. The deeper logic addresses a real anxiety in AI startups: most app products are thin layers ("wrappers") on top of someone else's model. If OpenAI, Anthropic or Google raises prices, changes terms, or launches a competing product, a wrapper has little protection. Owning — or heavily fine-tuning — your own model can cut costs, differentiate the product, and reduce dependence on the labs.
(Explainers: a foundation model is the large, general-purpose AI that powers chatbots and coding tools; fine-tuning adapts a model to a narrow task; a "wrapper" is a product that mostly just calls someone else's model.)
The defensibility debate
Base44's move is a concrete answer to a question hanging over the whole AI app boom: where does the value end up — with the model makers, or the products built on top? Industry watchers often point to three sources of durable advantage: proprietary data, distribution, and infrastructure. Base44 argues it now has all three — real usage data from its platform, distribution via Wix's huge customer base, and its own model. Vertical integration like that is rare for a startup barely more than a year old, and it's partly a defensive response to frontier labs themselves moving into vibe coding, competing directly with the tools built on their models.
Why it matters
For Wix and Base44, owning the model could mean lower running costs (no API bills that balloon with usage) and a more differentiated product. For the broader AI economy, it's a notable data point in the "wrapper" debate: a sign that surviving AI app companies may increasingly need to own or deeply customize their models, not just call an API — raising the bar for new entrants but rewarding those with unique data and reach.
The caveats are real: building and running a competitive model is expensive and hard, and a smaller, specialized model has to actually perform well enough to justify leaving the frontier labs' best models behind. (Specific capabilities of Base44's model remain to be proven in the wild.) But the strategic signal is clear, and increasingly common across AI: in a market where the raw intelligence is rented from a few giants, the companies that want to last are scrambling to own something the giants can't easily take away.
